Bogie-car.



PATENTED NOV. 21, 1905.

I. A. TIMMIS.

BOGIB GAR.

APPLICATION FILED MAYZB, 1905.

2 SHEETS-SHEET 1.

I I I I I I I I I I I I I I I I I l I I l I I I I I I I I I I I I I I II l I IIIILILI IIII III.

PATENTED NOV. 21, 1905.

I. A. TIMMIS.

BOGIE CAR.

APPLICATION rum) MAYZZ, 1905.

2 SHEETS-S33E12.

UNITED STATES PATENT OFFICE.

BOGlE-CAR.

Specification of Letters Patent.

Batented Nov, '21, 1905.

Application filed May 22,1905. Serial No. 261,576.

To all whom, it may concern.-

Be it known that I, ILLIUs AUGUSTUS TIM- MIS, a subject of the King ofGreat Britain, residing at London, in the county of Middlesex, England,have invented certain new and useful Improvements in Bogie-Gars, ofwhich the following is a specification, reference being had therein tothe accompanying drawings.

The objects of my invention are to improve the running ofrailway-vehicles by causing the bogietrucks to run more steadily withouthunting and preventing or minimizing the swaying of the car-body. Withthese objects in view it is necessary to deal with existing conditionsas far as possible.

This invention does not relate to bogie-cars in'wh'ich the car-bodyrests on a transverse bolster in the bogie, but solely to cars in whichthe car-body is carried directly by the bogieframe through the medium ofarms, rods or links, and springs. With my improvements I am, whereadvisable, able to do away with the center pin fixed to thecar-underframe, around which the bogie turns, by usinganovel system ofbogie-lead and adapting it to the bogie, as explained hereinafter.

My invention consists in the novel construction and combination of partshereinafter described and claimed.

My invention may be carried into practice under various modifications orvariations of the structure and arrangement of parts. According to oneplan as adapted to a four-wheel bogie-car I support either end of thecar-body by means of one vertical supporting-arm outside of and bypreference at the transverse center line on either side of the bogie.The lower end of the rod has a hole or eye in it. On either side of thebogie-frame opposite the supporting-arms I attach swinging rods or links(one to each supporting-arm) by means of swivel or universal joints. Theswinging rod goes through the eye at the lower end of thesupporting-arm. Below the eye I put two caps or cups or plates on theswinging rod, and at the bottom of it I put a nut or nuts, cotter, or.other suitable device. Then between the caps I put on the swinging rod aspring or springs. The car-body then, by means of the supporting-arms,rests on the top caps, which rest onthe springs. These latter aresupported by the bottom caps, nuts, &c., and the whole are carried bythe swinging rods, which are fitted to the bogie-frame.

Figure 1 in the accompanying drawings is a vertical transverse sectionof a bogie with my improvements. Fig. 2 is a plan view. Figs. 3 and 4are respectively a side view and transverse sectional view ofmodification.

O is the car-body. R R are the supportin arms; R R, the swinging rodsfastened to the bogie-frame F F by the universal joints U U. P P are thetop caps; S S, the springs, and P P the bottom plates, and N N the nuts.With this arrangement the car-body swings outward in the direction ofthe arrow A. The parts R P S R then travel outward also, and R travelsin direction A, and nuts N, with parts R, P, S, and P, describe part ofthe are A. It is evident that any outward travel of the car-body willcause the springsS to be compressed, while the spring and its rod on theopposite side of the bogie-frame will fall nearer the bogie-frame andassume a more vertical position. Under'thcse conditions two results areeffected-first, the outward swing of the car is softly minimized, and,second, the outward side of the car in going around a curve is slightlyraised and the other side is slightly lowered.

As illustrated in Figs. 3 and 4:, there may be more than one set ofarms, rods, and springs fitted on either side of the bogie, or, as shownin Fig. 3, one arm may work with several rods R. If two sets are fitted,the cups (top and bottom) may reach from one to the other.

The springs S may be of any suitable kind, and I prefer to fit them sothat there is more than one on each rod R, or if one spring only is usedon each rod they are loaded differentially. Instead of a rod R, goingthrough a spring or springs S, a cradle or link may go round them. It ispossible to fit one or more sets of arms, rods, springs, &c., on theinside or on both sides of each side frame of the bogie.

By using the above arrangement I may do away with the center pin usuallyfitted to the car-underframe, which fits in a sliding block fitted in atransverse bolster or frame at the center of the bogie, around which thebogie turns. Fig. 2 of the drawings illustrates one method of effectingthis when only one swinging rod R is used on each side. U U are theuniversal joints fitted, as described above, on either side outside thebogie-frame. R R are the swinging rods; S S, the springs. It

is evident that the lateral movement of the car-body is controlled bythese fittings; but it is necessary to fit some means of controlling thebogie under the car with regard to pushing the bogie in whicheverdirection the car is moving. To effect this object, I use means to givethe bogie a lead in whichever direction it is traveling. As shown in thedrawings, I fit to the bogie at each end a roller or rubbing piece B Bin the center line of the bogie. I

fit to the car under the frame a quadrant for each roller Q, Q, or twofor each bogie. These quadrants are brought down low enough to fit up toand against the rollers, and their curve is struck from the center pointof the bogie. The rollers and quadrants may be fitted at points otherthan those shown in Fig. 2; but I prefer to fit them near the ends ofthe bogie, as I find I get better results. As the bogie swivels underthe car as it is going around curves it usually turns around a centerpin fitted in castings, and the bogie is propelled by the castings. Ifthese castings and pin (either or both) are retained, the first part ofthis invention may be used as described with reference to Fig. 1, andthe car-body may be supported as described hereinbefore, the bogie-leadbeing omitted, or, according to another plan, the bogie-lead may beapplied and the castings fitted so as to have free movementlongitudinally and transversely; but if the bogie-lead is used asdescribed, first, the car-body is carried directly on springs outsidethe bogie-frame. (one or more sets on either side,) and the springsbeing preferably put only outside act as supporting-springs and as sidecheck-springs; second, the bogie is propelled at its leadingendwhichever end is leadingby the quadrant Q and rubbing piece or rollerB; third, as the bogie turns under the car it turns practically aroundits center, as the quadrants ought to be equidistant and are struck fromthe center point of the bogie, and the side springs are also in thetransverse center line of the bogie and are equidistant from its center.Should more than one set of springs be fitted on either side of thebogie-frame, then their common center should be in the transverse centerline of the bogie. The side springs and their swiveling rods or cradlesswing and conform to the side motion of the car-body and also to theturning movements of the bogie.

The invention is equally applicable to a sixwheel bogie as it is to afour-wheeler, which is described above.

Having described my invention, what I claim, and desire to secure byLetters Patent,

1. The combination with the body of a car and its bogies, of springsattached to the bogies to support the car-body, swinging arms on whichthe springs are mounted, and supporting-arms carried by the car-body andbearing on said spring, the parts being so constructed and arrangedthat, as the car swings to either side, the springs will travel with it,substantially as set forth.

2. The combination with a body of a car and its bogies, of springs andspring-supports mounted on the bogie and supporting the body end of thecar over each bogie and adapted to control said car-body in itstransverse movements, substantially as set forth.

3. The combination with a car-body and its bogies, of intervening sidebearing-springs, spring-supports and bearing-bars connecting the car tothe bogies and a bogie-lead adapted to control the propulsion of thebogie in either direction, independently on center draft-bearings.

In testimony whereof I afiix my signature in presence of two witnesses.

ILLIUS AUGUSTUS TIMMIS.

Witnesses:

S. J. LOTT, I. H. W. ROUND.

